<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>事件绑定</title>
	</head>
	<body>
		 <div id="app">
			 <!-- 事件绑定的语法：
			  v-on:click="简单的计算"
			  v-on:click="点击事件"
			  -->
			 展现数据：{{num}}
			 <button v-on:click="num++">自增</button>
			 <!-- <button v-on:click="addNum">自增函数</button> 
			 优化成@ -->
			 <button @click="addNum">自增函数</button>
		 </div>
		 <script src="../js/vue.js"></script>
		 <script>
			 const app = new Vue({
				 el: "#app",
				 data: {
				 	num: 100
				 },
				 methods: {
					 addNum: function(){
						 this.num ++
					 }
				 }
			 });
		 </script>
	</body>
</html>
